jmarkb wrote:No. 4 is Beinn an Dothaidh from Beinn Achaladair.
Just looking at that photo at this very minute and wondered if it was taken on the same day as the Beinn a'Chreachain one. I thought that it may have been a similar view of Beinn a'Chreachain. But, I think you are right.
I also think that No1 may be taken on the same day. The photo paper used is similar suggesting they came from the same batch. Could it be Beinn a'Chreachain from Achaladair?